Method and system for manufacturing optical display device

Abstract

A system for manufacturing an optical display device includes an optical display unit feeding apparatus with a counting section counting the number of optical display units fed, an optical film feeding apparatus with a roll exchanging section exchanging a roll of a previous category for a roll of a latter category and joining the optical films on each, a bonding apparatus bonding a cut optical film onto a surface of an optical display unit, and a controller storing the number N of optical display units that are bonded correspondingly with the optical films that are present from a joining position to a bonding position of the optical film, and stops the apparatuses when the number of remaining sheets of the optical display units of the previous category prior to bonding becomes substantially equal to the number N at the time of exchanging categories based on information from the counting section.

Description

[0001]This application is a divisional of U.S. application Ser. No. 12 / 937,609, filed on Oct. 13, 2010, which is a National Stage of International Application No. PCT / JP2009 / 057272, filed on Apr. 9, 2009, which claims priority to Japanese priority application No. 2008-105985 filed on Apr. 15, 2008 and Japanese priority application No. 2009-093181 filed on Apr. 7, 2009, which are hereby incorporated by reference.TECHNICAL FIELD[0002]The present invention relates to a method and a system for manufacturing an optical display device for bonding an optical film including a polarizing plate onto an optical display unit.BACKGROUND ART[0003]FIG. 6 conceptually shows a method for manufacturing an optical display device mounted on a conventional liquid crystal display device. First, an optical film maker produces a long (band-shaped) sheet material having an optical film as a material roll (#1). A specific step of manufacturing this is a known manufacturing step, so that the description will ...

AI Technical Summary

Benefits of technology

This approach reduces the number of leftover optical films from previous categories, enhancing manufacturing efficiency, reducing costs, and minimizing defects and storage needs by ensuring only the latest category's films and units are used, thus improving the overall production process.

Problems solved by technology

However, there is a problem of increase in the manufacturing costs caused by multiple steps.

Also, there are a problem of scratches, dusts, contamination, or the like generated by the multiple steps or transportation, the necessity of an inspection step accompanying this, and further a problem in that other kinds of pieces of sheet materials need to be stored and managed as a stock.

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